!3 When a page is renamed, any links to that page from subpages pages are changed. 

First build parent & child pages where one refers to the other.

|Page creator.|
|Page name.|Page contents.|valid?|
|!-ParentPage-!|!-refer to nothing-!|true|
|!-ParentPage.BrotherPage-!|!-you are my SisterPage-!|true|
|!-ParentPage.SisterPage-!|!- thanks brother, love SisterPage-!|true|

Then rename the target page.

|Response Requester.|
|uri   |status?|
|!-ParentPage.SisterPage?responder=renamePage&newName=NewSister-!||

Next fetch the Source page.

|Response Requester.|
|uri|valid?|contents?|
|!-ParentPage.BrotherPage-!|true||

Make sure that the new target name is present and that the old name is not.

|Response Examiner.|
|type  |pattern|matches?|
|contents|!-NewSister-!|true|
|contents|!-SisterPage-!|false|

Next fetch the Target page.

|Response Requester.|
|uri|valid?|contents?|
|!-ParentPage.NewSister-!|true||

Make sure that the new target name is present and that the old name is not.

|Response Examiner.|
|type  |pattern|matches?|
|contents|!-NewSister-!|true|
|contents|!-SisterPage-!|false|
